CN201327335Y - Built-in heat exchange finned tube for radiator - Google Patents

Abstract

The utility model relates to a built-in heat exchange finned tube for a radiator, which consists of an outer tube, a tube core and fins. The outer tube and the tube core are both smooth circular tubes; the arc corrugated fins are evenly distributed between the outer tube and the tube core; the tube core is of a streamlining tube body; and the outer tube is sleeved outside the arc corrugated fins. The outer tube, the tube core and the fins are tightly contacted so as to increase the heat exchange area of the inside of the tube and improve the heat efficiency; and the tube core is of a streamline shape, so the resistance of fluid is greatly reduced. The outer circular tube and the tube core are both sections, built-in fins are formed by once-stamping and drawing through a mould in the production process, and materials are even. The utility model provides the built-in heat exchange finned tube with small flow resistance and ultrahigh heat exchange efficiency for the radiator.

Description

The built-in heat-exchange finned tube of radiator

Technical field

The utility model relates to the built-in heat-exchange finned tube of a kind of radiator.

Background technology

The heat exchanger tube that existing heat exchanger is used adopts circle or ellipse light pipe and external finned tube and built-in screwed pipe mostly, and its built-in muscle sheet and screw thread are because that the limitation of technology can not be done is very abundant, and the heat exchange area in its pipe is little, and the thermal efficiency is low.

Summary of the invention

The purpose of this utility model provides a kind of heat exchanger tube that heat transmission contains built-in fin that improves, the utility model is realized by following structure: the utility model is the built-in fin heat exchange pipe of a kind of radiator, form by outer tube, tube core and fin, outer tube and tube core are smooth pipe, the fin of the circular arc bellows-shaped that distributes equably between outer tube and the tube core, tube core is the streamlined body, the outer suit outer tube of the fin of circular arc bellows-shaped.The utility model outer tube, tube core closely contact with fin, have promptly increased the heat exchange area in the pipe, have improved the thermal efficiency, and tube core is a streamline shape, has significantly reduced the resistance of fluid.Outer pipe and tube core are section bar, and by punching press drawing and moulding of mould, material is even in process of production for built-in fin, and the utility model provides the high radiator of the little heat exchange efficiency of a kind of flow resistance built-in heat-exchange finned tube for radiator.

Description of drawings

Fig. 1 is a utility model axis of no-feathering mapping

Fig. 2 is the sectional view of Fig. 1

The specific embodiment:

The utility model as shown in Figure 1 is the built-in finned tube that a kind of radiator is used, form by outer tube 1, tube core 3 and fin 2, outer tube 1 is smooth pipe with tube core 3, the fin 2 of the circular arc bellows-shaped that distributes equably between outer tube 1 and the tube core 3, as shown in Figure 2, tube core 3 is the streamlined body, the fin 2 outer suit outer tubes 1 of circular arc bellows-shaped.

Claims (1)

1, the built-in heat-exchange finned tube of a kind of radiator, be made up of outer tube, tube core and fin, it is characterized in that: outer tube and tube core are smooth pipe, the fin of the circular arc bellows-shaped that distributes equably between outer tube and the tube core, tube core is the streamlined body, the outer suit outer tube of the fin of circular arc bellows-shaped.

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